1. adjacent, next, side by side -- (nearest in space or position; immediately adjoining without intervening space; "had adjacent rooms"; "in the next room"; "the person sitting next to me"; "our rooms were side by side")
2. adjacent, conterminous, contiguous, neighboring -- (having a common boundary or edge; abutting; touching; "Rhode Island has two bordering states; Massachusetts and Conncecticut"; "the side of Germany conterminous with France"; "Utah and the contiguous state of Idaho"; "neighboring cities")
3. adjacent -- (near or close to but not necessarily touching; "lands adjacent to the mountains"; "New York and adjacent cities")

1.

The cat, I remembered, had been hung in a garden adjacent to the house. - from The Works of Edgar Allan Poe by Edgar Allan Poe

2.

He gave one doubtful look at them, then hurried into an adjacent telephone box. - from The Secret Adversary by Agatha Christie

3.

And the demesnes that there adjacent lie. - from The Complete Works of William Shakespeare by William Shakespeare

4.

of Albania, Epirus, and adjacent territory. - from The Count of Monte Cristo by Alexandre Dumas, Pere

5.

John flung the match into an adjacent flower bed, a proceeding which was too much for Poirot's feelings. - from The Mysterious Affair at Styles by Agatha Christie

6.

To the left the horizon bounded by the adjacent wood. - from War and Peace by Leo Tolstoy

7.

This puzzled the Frenchman exceedingly and, being a stranger in those parts, he called to a farmer in an adjacent field. - from The Best American Humorous Short Stories by Various

8.

He pointed out to me how unlikely it was that organic evolution had taken the same direction in the two adjacent planets. - from The War of the Worlds by H. G. Wells

9.

Not stumbling on the means after all, I was fain to go out to the adjacent Lodge and get the watchman there to come with his lantern. - from Great Expectations by Charles Dickens